Rubbermaid Brute 32 Gallon - gallon measurements

[tomas]

Does everyone agree that the inside rim about 3/4 of the way up on a 32g brute is about 24 gallons? This is on the inside almost in line with the handles on the outside.

I'm trying to gauge how much water is in the brute at different heights. I'm never quite sure how much to fill the 5g buckets to verify it is truely 5 gallons.

 

[VisionsSS]

Might be best to use a milk jug for an acurate count. You can mark the out side of the can with a sharpie or if the can is thicker you can take a hot knife and leave a shallow score on the inside.

It would take a while but you would only have to do it once and it would be dead on for mixing.

Also if you wanted once you got your "x" Gallon mark you could just through in a Kent Marine Float valve so filling stops at the same point every time.

 

[tomas]

I'll try the milk jug fill it to the brim trick to get an accurate measurement of gallons.

Thanks

 

[rogergolf66]

let us know results

Roger

 

[gpodio]

Re: Rubbermaid Brute 32 Gallon - gallon measurements

<a href=showthread.php?s=&postid=12549490#post12549490 target=_blank>Originally posted</a> by tomas
Does everyone agree that the inside rim about 3/4 of the way up on a 32g brute is about 24 gallons? This is on the inside almost in line with the handles on the outside.

I'm trying to gauge how much water is in the brute at different heights. I'm never quite sure how much to fill the 5g buckets to verify it is truely 5 gallons.

I've never measured it, but that sounds right to me. Mine takes 12.5 cups of salt mixture to prepare so that should be around the 25 gallon mark... At least that's the volume I enter in the log book.

If you need to be certain, stick a scale under the tub and measure by weight...

 

[DavidG1966]

Water weighs 8.3389 lbs per gallon. Find out how much the container weighs and its simple math. Put the container on a scale and subtract the weight of the empty container and divide by 8.3389 to find the gallons.... Did I explain that ok?

 

[eznet2u]

I have heard a thousand different weights for water...

I think I found out why.

"The Handbook of Chemistry and Physics specifies the weight of 1 US gallon of water in air at 68 degrees F to be 8.32487 pounds or 3776.103 grams."

"One gallon of water, at 20 degrees Celsius, weighs 8.33 pounds."

"A U.S. gallon (determined by fluid volume at 72 deg. F, at sea level) of fresh water weighs exactly 8.3452641 lb."

"On Jupiter it would weigh about 19.5 pounds."

Temperature plays a part in all of this...ah, I get it now.

Sorry for the hi-jack. But now you know.

 

[gpodio]

So on 25 gallons you'd have an accuracy of like +/- 0.06 gallons

But now you got me curious... would RO weigh less than tap?

 

[BeanAnimal]

Yes, RO would weigh less. The disolved solids in tap water would in theory have a higher specific gravity. Because they displace the water, they would therefore cause it to wiegh slightly more. Just the same as seawater weighs slightly more than freshwater.

 

[gpodio]

That's what I was thinking too... but would they actually displace it? Don't most dissolved solids occupy spaces within the water molecules themselves? Meaning no displacement, just an increase in mass? ...Looks like we'll be measuring this bucket to the nanoliter

 

[BeanAnimal]

Yeah.. you are correct. I guess I am not thinking clearly this morning.

 

[gpodio]

It's Monday! We shouldn't even be out of bed....

 

[Lightsluvr]

Re: Rubbermaid Brute 32 Gallon - gallon measurements

<a href=showthread.php?s=&postid=12549490#post12549490 target=_blank>Originally posted</a> by tomas
Does everyone agree that the inside rim about 3/4 of the way up on a 32g brute is about 24 gallons? This is on the inside almost in line with the handles on the outside.

That has been my experience...

I run my RO/DI up to that line, and add salt accordingly...Circulate with a Mag 7 for several days, then always measure SG and heat before adding to my tanks...

LL